Global Patent Index - EP 2086666 B1

EP 2086666 B1 20150325 - METHOD OF REPAIRING DEFECTS IN A CERAMIC FILTER

Title (en)

METHOD OF REPAIRING DEFECTS IN A CERAMIC FILTER

Title (de)

VERFAHREN ZUR REPARATUR VON FEHLSTELLEN IN EINEM KERAMIKFILTERS

Title (fr)

PROCÉDÉ DE RÉPARATION DE DÉFAULTS DANS UN FILTRE CÉRAMIQUE

Publication

EP 2086666 B1 20150325 (EN)

Application

EP 07830501 A 20071018

Priority

  • JP 2007070767 W 20071018
  • JP 2006284402 A 20061018

Abstract (en)

[origin: US2008093008A1] There is disclosed a method of manufacturing a thin and uniform ceramic filter formed with less membrane formation times and having less defects. A ceramic sol whose average pore diameter after the sol itself has been formed into a membrane is larger than that of a ceramic separation membrane and is 10 nm or less is brought into contact with the surface of a ceramic separation membrane having an average pore diameter of 0.5 to 10 nm, and the ceramic separation membrane having the ceramic sol is dried and then fired to repair a defect portion of the ceramic separation membrane.

IPC 8 full level

B01D 71/02 (2006.01); B01D 63/06 (2006.01); B01D 65/10 (2006.01); C04B 41/87 (2006.01)

CPC (source: EP US)

B01D 63/066 (2013.01 - EP US); B01D 65/108 (2013.01 - EP US); B01D 67/0048 (2013.01 - EP US); B01D 2325/02 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

US 2008093008 A1 20080424; US 7923060 B2 20110412; AU 2007310061 A1 20080502; AU 2007310061 B2 20110901; BR PI0717646 A2 20131015; CA 2666282 A1 20080502; CA 2666282 C 20130402; CN 101528327 A 20090909; CN 101528327 B 20120905; EP 2086666 A1 20090812; EP 2086666 B1 20150325; JP 2010506700 A 20100304; JP 5438507 B2 20140312; WO 2008050818 A1 20080502

DOCDB simple family (application)

US 85069707 A 20070906; AU 2007310061 A 20071018; BR PI0717646 A 20071018; CA 2666282 A 20071018; CN 200780038702 A 20071018; EP 07830501 A 20071018; JP 2007070767 W 20071018; JP 2009511296 A 20071018